Pendulum Ball Swing Balance Balls Physics Science Desk Stress Relief Toys for Home Office

Feature:1. Educational science tool shows the law of conservation of momentum and the law of conservation of energy. 2. This is a very interesting decompression toy, the ball can be used to hit other balls and swing. 3. Swing balance ball is made of high‑grade plastic and sturdy steel balls, it is . 4. Stress relief toy is Very suitable for home decoration, study and desk decoration. . Wrought iron pendulum balls are also a better birthday gift and children\\\'s toy. Specification:Item Type: Pendulum Balls Material: Plastic + Wrought Iron Weight: Approx. 87g / 3.1oz Product Size: Approx. 9.1x7.6x9.5cm / 3.6x3.0x3.7in Package List:1 x Base1 x Bracket Label: Yes